Table 4.

Allele frequency in different pig breeds

SNPs of MMP19	Pig breeds
	Tongcheng pig		Yorkshire pig		Landrace pig			LYT pig		YLT pig
C203T in exon 5
NO. of CC individuals	2		12		3			8		18
NO. of CT individuals	13		1		6			23		10
NO. of TT individuals	14		0		0			6		0
Frequency of C	0.29		0.96		0.57			0.53		0.82
Frequency of T	0.71		0.04		0.33			0.47		0.18
SNPs of MMP23B	Pig breeds
	Tongcheng pig	Yorkshire pig		Landrace pig		Wuzhishan pig	Bama pig		Laiwu pig		Guizhou pig
C131T in exon 3
NO. of CC individuals	4	12		0		6	0		0		7
NO. of CT individuals	13	3		8		25	7		11		20
NO. of TT individuals	18	0		3		8	25		31		15
Frequency of C	0.30	0.90		0.37		0.47	0.11		0.87		0.41
Frequency of T	0.70	0.10		0.63		0.53	0.89		0.13		0.59
A150G in exon 4
NO. of GG individuals	16	0		2		0	33		32		15
NO. of AG individuals	12	5		9		39	11		10		20
NO. of AA individuals	5	13		0		0	0		0		6
Frequency of G	0.66	0.14		0.59		0.50	0.88		0.12		0.61
Frequency of A	0.34	0.86		0.41		0.50	0.12		0.88		0.39